# ROAS to ROI Conversion & COGS Calculator Convert Return on Ad Spend (ROAS) to true Return on Investment (ROI) by factoring in Cost of Goods Sold (COGS) and overhead. --- - **Canonical URL:** https://dothecalculation.com/calculators/roas-to-roi-cogs-calculator - **Category:** Creative & Digital Marketing - **Publisher:** Do The Calculation (https://dothecalculation.com) - **Cost:** Free, no account or sign-up required - **Privacy:** Runs entirely in the browser; inputs are never sent to a server - **Methodology:** https://dothecalculation.com/methodology - **Reviewed by:** Sheharyar Shahid, Data Analyst & Advanced Excel Specialist (DAE) (https://dothecalculation.com/about/team/sheharyar-shahid) --- ## Convert ROAS to true ROI with COGS and fees Incorporate Cost of Goods Sold (COGS), shipping, transaction fees, and overhead to discover true ROI and find your break-even ROAS target. - True ROI after variable costs - Break-even ROAS required - COGS and payment fee tracking ## Why ROAS hides the true profitability of ad spend Return on Ad Spend (ROAS) is a popular metric because ad platforms report it natively. But ROAS only measures top-line revenue divided by ad spend. It ignores the cost of goods sold (COGS), warehouse shipping, payment processor charges, and monthly overhead. An ad campaign with a 300% ROAS ($3.00 returned for every $1.00 spent) looks successful. But if your COGS is 50%, shipping is $5.00, and fees are 3%, that 300% ROAS is actually losing money. Use this calculator to uncover true profitability, and monitor lead costs using the [CPL calculator](/calculators/cost-per-lead-cpl-calculator) or determine the absolute minimum ROAS using the [break-even ROAS calculator](/calculators/breakeven-roas-calculator). ## The ROAS to ROI mathematical formulas True profitability and break-even targets are modeled using these unit economic equations: $$\text{Revenue} = \text{Ad Spend} \times \text{ROAS}$$ $$\text{Units} = \frac{\text{Revenue}}{\text{AOV}}$$ $$\text{Total COGS} = \text{Revenue} \times \left(\frac{\text{COGS (\%)}}{100}\right)$$ $$\text{Total Fees} = \text{Revenue} \times \left(\frac{\text{Processor Fee (\%)}}{100}\right) + \text{Units} \times \text{Processor Fixed Fee}$$ $$\text{Total Shipping} = \text{Units} \times \text{Shipping Cost Per Unit}$$ $$\text{ROI (\%)} = \frac{\text{Revenue} - \text{Total Cost}}{\text{Total Cost}} \times 100$$ Where **Total Cost** equals the sum of Ad Spend, COGS, Shipping, Fees, and Overhead. The **Break-Even ROAS** is the ad multiplier required to achieve a Net Profit of zero, solved as: $$\text{Break-Even ROAS} = \frac{1 + \frac{\text{Overhead}}{\text{Ad Spend}}}{1 - \text{Variable Cost Ratio}}$$ Where the variable cost ratio is the sum of COGS%, shipping cost ratio, and payment fees. ## Managing variable costs to scale profit margins If your variable costs are too high, scaling ad spend will only accelerate your losses. Use this tool to run sensitivity analyses: see how negotiating shipping rates or improving AOV affects your break-even ROAS target. Compare your unit economics against the [CLV to CAC ratio calculator](/calculators/clv-to-cac-ratio-calculator) to analyze long-term customer value. ## How to Use This Calculator Enter ad spend and the ROAS your ad platform reports, then set your average order value (AOV) so the calculator can convert revenue into units sold. Add COGS as a percentage of revenue, shipping cost per unit, processor fees (percentage plus fixed per-order charge), and allocated monthly overhead. The calculator converts platform-reported ROAS into revenue, subtracts every real cost layer (COGS, shipping, fees, overhead, and the ad spend itself) to find true net profit and ROI, then solves for the break-even ROAS you would need just to cover costs. ## Worked Example: DTC Product Campaign $1,000 in ad spend at a reported 3.0x ROAS generates $3,000 in revenue (60 units at a $50 AOV). COGS at 30% = $900, shipping at $5/unit = $300, processor fees (2.9% + $0.30/unit) = $105, and $200 in allocated overhead. Total cost = $1,000 + $900 + $300 + $105 + $200 = $2,505. Net profit = $3,000 - $2,505 = $495, for a true ROI of 19.76% — far below the headline 300% ROAS. The break-even ROAS for this cost structure is 2.12x. ## Related Calculators Find the minimum ROAS needed before fees using the [break-even ROAS calculator](/calculators/breakeven-roas-calculator), check blended efficiency across every channel with the [MER efficiency ratio calculator](/calculators/mer-efficiency-ratio-calculator), or size the ad budget behind a profit target with the [marketing ROI calculator](/calculators/marketing-roi-calculator). ## Frequently asked questions ### What is the main difference between ROAS and ROI? ROAS only measures revenue relative to ad spend; ROI measures net profit relative to all costs including COGS, fees, and overhead. ### How do you calculate break-even ROAS? Divide (1 + overhead / spend) by (1 - variable cost ratio), where variable cost ratio includes COGS %, shipping, and transaction fees. ### Why does my ROAS look profitable but I am losing money? Because your gross margin is not high enough to cover product costs, shipping, payment processing fees, and overhead. ### What is COGS? Cost of Goods Sold, representing the direct costs of manufacturing or purchasing the products sold. ### How do payment processing fees affect ROI? Processing fees (e.g. 2.9% + $0.30) take a bite out of every transaction, lowering your net margin. ### Can this tool calculate ROAS if I enter revenue instead? Yes, if you enter revenue and ad spend, the calculator derives your ROAS. ### What does a variable cost ratio mean? The sum of all costs that scale with every unit sold, represented as a percentage of the product price. ### How does AOV affect my break-even ROAS? A higher AOV spreads fixed shipping and transaction fees across more revenue, lowering your break-even ROAS target. ### Should I include monthly software tools in overhead? Yes, any fixed software or team cost allocated to running your campaigns should be included in overhead. ### What is a good true ROI target for ecommerce? A true campaign ROI of 20% to 50%+ after all costs is considered healthy for ecommerce brands. ### What happens if my variable cost ratio exceeds 1? It means you are losing money on every unit sold before ad spend. The calculator returns zero break-even ROAS, indicating that no ROAS can achieve profitability. ### How do I lower my break-even ROAS? Increase your AOV, negotiate lower shipping rates, reduce COGS, or lower campaign overhead. ## Related concepts - **Variable Cost Ratio** — The percentage of product price consumed by COGS, shipping, and fees. - **Break-Even ROAS** — The minimum return on ad spend required to cover all campaign and unit costs. - **True ROI** — Net profit divided by all campaign costs, including media and non-media overheads. ## Related guides - [Paid Media Metrics Guide: CPC, CPM, CTR, CPA, ROAS, and ROI in Plain English](https://dothecalculation.com/blog/marketing/paid-media-metrics-guide) — Understand the paid media metrics that actually matter. Learn how CPC, CPM, CTR, CPA, ROAS, and ROI connect, when to use each one, and how to avoid reporting cheap traffic as business success. ## Related calculators - [Break-Even ROAS Calculator](https://dothecalculation.com/calculators/breakeven-roas-calculator) — Determine the minimum return on ad spend needed to cover product cost and achieve profitability for your paid advertising campaigns. - [Content Marketing ROI Calculator](https://dothecalculation.com/calculators/content-roi-calculator) — Evaluate content marketing return on investment from production costs, traffic generated, and conversion value across your campaigns. - [Blended Marketing ROI (ROMI) Calculator](https://dothecalculation.com/calculators/marketing-roi-blended-calculator) — Estimate blended marketing return on investment from incremental sales and total marketing spend to see overall campaign effectiveness. - [Marketing ROI Calculator](https://dothecalculation.com/calculators/marketing-roi-calculator) — Measure marketing campaign ROI, ROAS, cost per acquisition, and profit generated from attributed revenue and total advertising spend. - [SEO ROI Calculator](https://dothecalculation.com/calculators/seo-roi-calculator) — Estimate organic search engine optimization return on investment from traffic growth, conversion rates, and total SEO expenditure. - [SMS Marketing Conversion Rate & CTR Calculator](https://dothecalculation.com/calculators/sms-marketing-conversion-calculator) — Calculate click-through rate, opt-out rate, conversion rate, cost per conversion, and ROI for your SMS text marketing campaigns. --- _This calculator is for educational and campaign-planning purposes only. Real media performance depends on platform auction dynamics, audience quality, creative execution, attribution settings, conversion lag, and reporting methodology. Validate critical decisions against live platform dashboards and finance reporting._ --- _Source: [Do The Calculation](https://dothecalculation.com/calculators/roas-to-roi-cogs-calculator). Quote freely with attribution and a link to this page._